package com.burst.reptile.framework.aspectj;

import java.lang.reflect.Method;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.aspectj.lang.JoinPoint;
import org.aspectj.lang.Signature;
import org.aspectj.lang.annotation.AfterReturning;
import org.aspectj.lang.annotation.AfterThrowing;
import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.annotation.Pointcut;
import org.aspectj.lang.reflect.MethodSignature;
import org.springframework.stereotype.Component;
import org.springframework.web.multipart.MultipartFile;

import com.alibaba.fastjson.JSONObject;
import com.burst.reptile.common.utils.ServletUtils;
import com.burst.reptile.common.utils.ToolUtil;
import com.burst.reptile.common.utils.ip.IpUtils;
import com.burst.reptile.framework.aspectj.lang.annotation.Log;
import com.burst.reptile.framework.aspectj.lang.enums.BusinessStatus;
import com.burst.reptile.framework.config.SpringContextHolder;
import com.burst.reptile.framework.manager.AsyncManager;
import com.burst.reptile.framework.manager.factory.AsyncFactory;
import com.burst.reptile.framework.security.LoginUser;
import com.burst.reptile.framework.security.service.TokenService;
import com.burst.reptile.framework.web.result.Result;
import com.burst.reptile.modular.monitor.entity.SysOperLog;

import cn.hutool.core.util.StrUtil;
import cn.hutool.http.useragent.UserAgent;
import cn.hutool.http.useragent.UserAgentUtil;
import lombok.extern.slf4j.Slf4j;

/**
 * 操作日志记录处理
 * 
 * @author wujin
 * @date: 2020年5月27日 下午4:05:08
 */
@Aspect
@Component
@Slf4j
public class LogAspect {
	

	// 配置织入点
	@Pointcut("@annotation(com.burst.reptile.framework.aspectj.lang.annotation.Log)")
	public void logPointCut() {
	}

	/**
	 * 处理完请求后执行
	 *
	 * @param joinPoint 切点
	 */
	@AfterReturning(pointcut = "logPointCut()", returning = "jsonResult")
	public void doAfterReturning(JoinPoint joinPoint, Object jsonResult) {
		handleLog(joinPoint, null, jsonResult);
	}

	/**
	 * 拦截异常操作
	 * 
	 * @param joinPoint 切点
	 * @param e         异常
	 */
	@AfterThrowing(value = "logPointCut()", throwing = "e")
	public void doAfterThrowing(JoinPoint joinPoint, Exception e) {
		handleLog(joinPoint, e, null);
	}

	protected void handleLog(final JoinPoint joinPoint, final Exception e, Object jsonResult) {
		try {
			// 获得注解
			Log controllerLog = getAnnotationLog(joinPoint);
			if (controllerLog == null) {
				return;
			}

			// 获取当前的用户
			LoginUser loginUser = SpringContextHolder.getBean(TokenService.class).getLoginUser(ServletUtils.getRequest());
		
			// *========数据库日志=========*//
			SysOperLog operLog = new SysOperLog();
			operLog.setOperStatus(BusinessStatus.SUCCESS.ordinal());
			// 请求的地址
			String ip = IpUtils.getIpAddr(ServletUtils.getRequest());
			operLog.setOperIp(ip);
			
			UserAgent userAgent = UserAgentUtil.parse(ServletUtils.getRequest().getHeader("User-Agent"));
			if(ToolUtil.isNotEmpty(userAgent)) {
				// 操作系统
				operLog.setOs(userAgent.getOs().getName());
				// 客户端类型
				operLog.setBrowser(userAgent.getBrowser().getName());
			}
			// 返回参数
			String jsonString = "";
			try {
				jsonString = JSONObject.toJSONString(jsonResult);
			} catch (Exception e2) {
				jsonString = JSONObject.toJSONString(Result.success(""));
			}
			operLog.setJsonResult(jsonString);
			operLog.setOperUrl(ServletUtils.getRequest().getRequestURI());
			if (loginUser != null) {
				operLog.setOperName(loginUser.getUsername());
			}

			if (e != null) {
				operLog.setOperStatus(BusinessStatus.FAIL.ordinal());
				operLog.setErrorMsg(StrUtil.sub(e.getMessage(), 0, 8000));
			}
			// 设置方法名称
			String className = joinPoint.getTarget().getClass().getName();
			String methodName = joinPoint.getSignature().getName();
			operLog.setMethod(className + "." + methodName + "()");
			// 设置请求方式
			operLog.setRequestMethod(ServletUtils.getRequest().getMethod());
			// 处理设置注解上的参数
			getControllerMethodDescription(joinPoint, controllerLog, operLog);
			// 保存数据库
			AsyncManager.me().execute(AsyncFactory.recordOper(operLog));
		} catch (Exception exp) {
			// 记录本地异常日志
			log.error("==前置通知异常==");
			log.error("异常信息:{}", exp.getMessage());
			exp.printStackTrace();
		}
	}

	/**
	 * 获取注解中对方法的描述信息 用于Controller层注解
	 * 
	 * @param log     日志
	 * @param operLog 操作日志
	 * @throws Exception
	 */
	public void getControllerMethodDescription(JoinPoint joinPoint, Log log, SysOperLog operLog) throws Exception {
		// 设置action动作
		operLog.setBusinessType(log.businessType().ordinal());
		// 设置标题
		operLog.setTitle(log.title());
		// 设置操作人类别
		operLog.setOperatorType(log.operatorType().ordinal());
		// 是否需要保存request，参数和值
		if (log.isSaveRequestData()) {
			// 获取参数的信息，传入到数据库中。
			setRequestValue(joinPoint, operLog);
		}
	}

	/**
	 * 获取请求的参数，放到log中
	 * 
	 * @param operLog 操作日志
	 * @throws Exception 异常
	 */
	private void setRequestValue(JoinPoint joinPoint, SysOperLog operLog) throws Exception {
		String params = argsArrayToString(joinPoint.getArgs());
		operLog.setOperParam(StrUtil.sub(params, 0, 8000));
	}

	/**
	 * 是否存在注解，如果存在就获取
	 */
	private Log getAnnotationLog(JoinPoint joinPoint) throws Exception {
		Signature signature = joinPoint.getSignature();
		MethodSignature methodSignature = (MethodSignature) signature;
		Method method = methodSignature.getMethod();

		if (method != null) {
			return method.getAnnotation(Log.class);
		}
		return null;
	}

	/**
	 * 参数拼装
	 */
	private String argsArrayToString(Object[] paramsArray) {
		String params = "";
		if (paramsArray != null && paramsArray.length > 0) {
			for (int i = 0; i < paramsArray.length; i++) {
				if (!isFilterObject(paramsArray[i])) {
					try {
						String jsonObj = JSONObject.toJSONString(paramsArray[i]);
						params += jsonObj.toString() + " ";
					} catch (Exception e) {
					}
				}
			}
		}
		return params.trim();
	}

	/**
	 * 判断是否需要过滤的对象。
	 * 
	 * @param o 对象信息。
	 * @return 如果是需要过滤的对象，则返回true；否则返回false。
	 */
	public boolean isFilterObject(final Object o) {
		return o instanceof MultipartFile || o instanceof HttpServletRequest || o instanceof HttpServletResponse;
	}
}
